This Part Fits the following kits / parts:

#86344 - TITANIUM IDLER SHAFT 6x8x45mm

Savage/Replaces #86088/Light weight (40% Lighter) and high strength

Discontinued

New from HPI is our Titanium Idler Shaft for the Savage series of
Monster Trucks! Titanium parts are 40% lighter than the stock steel
parts for a reduction in overall truck weight and rotational
drivetrain mass for quicker acceleration and higher performance.
Recommended for use in combination with # 86343 Titanium Gear shaft
and #86345 Titanium Drive shaft. This
is a direct replacement for #86088.